A. Telophase I
B. Anaphase I
C. Telophase II
D. Anaphase II
参考答案:
D
本题详细解析:
Meiosis produces four daughter cells from one parent cell over two cell divisions, during anaphase II the sister chromatids are being pulled to either pole of the cell (Choice D).
Choice A is incorrect as during Telophase I, homologous chromosomes are pulled to either pole of the cell, producing two new cells. Choice B is incorrect because during Anaphase I, homologous chromosomes are beginning to be pulled to either pole of the cell leading to formation of two new cells. Choice C is incorrect as during Telophase II, sister chromatids (now chromosomes in own right) are at each pole of the cell, the chromosomes are unwinding, the spindle is disassembling and the nuclear envelopes are forming, resulting in the formation of 4 haploid cells.
